产品特点 Features

• I²C-bus controlled IC card interface in TSSOP28
• Supply voltage from 2.7 V to 6.5 V
• Independant supply voltage VDD(INTF) for interface signals with the microcontroller
• Shutdown input for very low power consumption when the part is not used
• Power reduction modes when the card is active
• DC-to-DC converter for VCC generation (capacitive doubler, tripler, or inductive, or follower automatically selected according to supply voltage and card voltage)
• 1 specific protected half duplex bidirectional buffered I/O line, with current limitation at +-15 mA, maximum frequency 1 MHz
• 2 auxiliary card I/O lines controlled by I²C-bus (C4 and C8)
• VCC regulation: 5 V, 3 V or 1.8 V +- 8 pct, ICC< 55 mA, current spikes of 40 nAs up to 20 MHz, with controlled rise and fall times, filtered overload detection approximately 80 mA, current limitation about 120 mA
• Thermal and short-circuit protections on all card contacts
• Automatic activation and deactivation sequences: initiated by software or by hardware in the event of a short-circuit, card take-off, overheating, VDD or VDD(DCDC) drop-out
• Enhanced ElectroStatic Discharge (ESD) protection on card side (> 6 kV)
• 20 MHz clock input
• Clock generation for the card up to 10 MHz (CLKIN divided by 1, 2, 4 or 5) with synchronous frequency changes; stop HIGH or LOW or free running 1 MHz in cards Low-power mode; current limitation on pin CLK (C3)
• RST signal (C2) with current limitation at 20 mA, controlled by an embedded programmable CLK pulse counter on asynchronous cards or by a register on synchronous cards
• ISO 7816-3, GSM 11.11 and EMV 2000 (payment systems) compatibility
• Supply voltage supervisor for spike killing during power-on and emergency deactivation at power-off: threshold internally fixed or set via an external resistor bridge; pulse width internally fixed or set via an external capacitor
• Card presence input with 10 ms built-in debouncing system
• One interrupt signal INT

应用

• Banking terminals
• Internet terminals
• Set-top boxes
• Portable IC card readers

产品实物图